A source close to Heidi tells HollywoodLife.com exclusively that her relationship with Martin Kirsten began ‘well after’ her separation. Martin is ‘one of the five people she trusts and loves and relies on.’

Heidi Klumis “very upset” following Seal‘s “crazy, untrue accusations” that she began dating bodyguard Martin Kirstenbefore she and Seal were separated. “Seal is upset that she’s moved on and is having a relationship with someone from their camp that he used to like and would have liked to have on his team,” a source close to the former couple tells HollywoodLife.com exclusively.

For now, our source insists that “Heidi is focusing on family and moving forward with her life. It’s her time to take care of her family. She’s not interested in going out dating and clubbing. Martin is in her inner circle of five people she trusts and loves and relies on.”

And Heidi’s not the only person who’s enjoying having Martin around. Her children —Leni, 8, Henry, 6, Johan, 5, and Lou, 2 — are also crazy about him!

“[Martin] knows her kids, he loves her kids, and the kids love him,” our source says. “It’s hard to find somebody to know your kids and who will care for your kids. It’s lonely to do it alone and have nobody who cares for your kids like you do. It’s awful that [Seal] is putting down the mother of his children in front of the children. It’s someone who’s a very angry person, not someone who has his kids’ interests in mind.”

Our source is also surprised at Seal’s accusations, because they seem totally out of character.

“Seal normally gets off a plane and calls paparazzi ‘scumbags,'” the source explains. “He’s mercurial at best. He doesn’t act like he’s doing a 60 Minutes interview with paparazzi.”

HollywoodLife.com also reached out to Heidi’s rep, who had this to say:

“It’s sad that [Seal] has to resort to false accusations.”

How do you feel about Heidi and Seal’s unfortunate back-and-forth, HollywoodLifers? Was Seal totally out of line for accusing Heidi and Martin of getting together before she and Seal separated? Drop us a comment with your thoughts below!